Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870078 | W-amino alkylsulfonate derivatives for improving microcirculation | Kiyoshi Eshima, Shigeru Kaneko | 1989-09-26 |
| 4851067 | Method for producing a weather strip for an automobile | Masaki Oohashi, Tomoyuki Kamiya | 1989-07-25 |
| 4797502 | Sulfonic acid ester derivatives and process for preparing same | Setsuro Fujii, Toshihiro Hamakawa, Yoshiyuki Muranaka | 1989-01-10 |